RESEARCH PAPERS: Gas Turbines: Structures and Dynamics

Design and Analysis of a Sensorless Magnetic Damper

[+] Author and Article Information
H. M. Chen

Mechanical Technology Inc., Latham, NY 12110

J. Eng. Gas Turbines Power 119(1), 174-177 (Jan 01, 1997) (4 pages) doi:10.1115/1.2815544 History: Received February 13, 1995; Online November 19, 2007


An analytical method for designing magnetic bearing controllers with no displacement sensors has been developed and laboratory tested. The method was applied to the design of a sensorless magnetic damper for replacing a rolling element bearing of a vertical rotor with a large unbalance. The synchronous vibration force transmitted to ground was predicted to be reduced by a factor of ten.

Copyright © 1997 by The American Society of Mechanical Engineers
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